[PATCH 0/6 v3] KVM: x86: Fill in conforming {vmx|svm}_x86_ops and {vmx|svm}_nested_ops via macros

[PATCH 0/6 v3] KVM: x86: Fill in conforming {vmx|svm}_x86_ops and {vmx|svm}_nested_ops via macros

[Krish Sadhukhan]

v2 -> v3:
	1. kvm_arch_hardware_unsetup() is changed to
	   kvm_arch_hardware_teardown() on non-x86 arches as well.

	2. The following #defines

		KVM_MEMORY_ENCRYPT_OP
		KVM_MEMORY_ENCRYPT_REG_REGION
	   	KVM_MEMORY_ENCRYPT_UNREG_REGION

	   have been changed to:

		KVM_MEM_ENC_OP
		KVM_MEM_ENC_REGISTER_REGION
		KVM_MEM_ENC_UNREGISTER_REGION

	3. Patch# 6 is new. It changes the KVM_MEMORY_ENCRYPT_* #defines in
	   QEMU to make them conformant to those in the kernel.


[PATCH 1/6 v3] KVM: x86: Change names of some of the kvm_x86_ops
[PATCH 2/6 v3] KVM: SVM: Fill in conforming svm_x86_ops via macro
[PATCH 3/6 v3] KVM: nSVM: Fill in conforming svm_nested_ops via macro
[PATCH 4/6 v3] KVM: VMX: Fill in conforming vmx_x86_ops via macro
[PATCH 5/6 v3] KVM: nVMX: Fill in conforming vmx_nested_ops via macro
[PATCH 6/6 v3] QEMU: x86: Change KVM_MEMORY_ENCRYPT_*  #defines to make them

 arch/arm64/include/asm/kvm_host.h   |   2 +-
 arch/mips/include/asm/kvm_host.h    |   2 +-
 arch/powerpc/include/asm/kvm_host.h |   2 +-
 arch/s390/kvm/kvm-s390.c            |   2 +-
 arch/x86/include/asm/kvm_host.h     |  12 +-
 arch/x86/kvm/svm/avic.c             |   4 +-
 arch/x86/kvm/svm/nested.c           |  18 +--
 arch/x86/kvm/svm/sev.c              |   6 +-
 arch/x86/kvm/svm/svm.c              | 218 +++++++++++++++++----------------
 arch/x86/kvm/svm/svm.h              |   8 +-
 arch/x86/kvm/vmx/nested.c           |  26 ++--
 arch/x86/kvm/vmx/nested.h           |   2 +-
 arch/x86/kvm/vmx/vmx.c              | 238 ++++++++++++++++++------------------
 arch/x86/kvm/vmx/vmx.h              |   2 +-
 arch/x86/kvm/x86.c                  |  28 ++---
 include/linux/kvm_host.h            |   2 +-
 include/uapi/linux/kvm.h            |   6 +-
 tools/include/uapi/linux/kvm.h      |   6 +-
 virt/kvm/kvm_main.c                 |   4 +-
 19 files changed, 298 insertions(+), 290 deletions(-)

Krish Sadhukhan (5):
      KVM: x86: Change names of some of the kvm_x86_ops functions to make them m
      KVM: SVM: Fill in conforming svm_x86_ops via macro
      KVM: nSVM: Fill in conforming svm_nested_ops via macro
      KVM: VMX: Fill in conforming vmx_x86_ops via macro
      KVM: nVMX: Fill in conforming vmx_nested_ops via macro

 target/i386/sev.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

Krish Sadhukhan (1):
      QEMU: x86: Change KVM_MEMORY_ENCRYPT_*  #defines to make them conformant t

[PATCH 1/6 v3] KVM: x86: Change names of some of the kvm_x86_ops functions to make them more semantical and readable

[Krish Sadhukhan]

Suggested-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Krish Sadhukhan <krish.sadhukhan@oracle.com>
---
 arch/arm64/include/asm/kvm_host.h   |  2 +-
 arch/mips/include/asm/kvm_host.h    |  2 +-
 arch/powerpc/include/asm/kvm_host.h |  2 +-
 arch/s390/kvm/kvm-s390.c            |  2 +-
 arch/x86/include/asm/kvm_host.h     | 12 ++++++------
 arch/x86/kvm/svm/svm.c              | 12 ++++++------
 arch/x86/kvm/vmx/vmx.c              |  8 ++++----
 arch/x86/kvm/x86.c                  | 28 ++++++++++++++--------------
 include/linux/kvm_host.h            |  2 +-
 include/uapi/linux/kvm.h            |  6 +++---
 tools/include/uapi/linux/kvm.h      |  6 +++---
 virt/kvm/kvm_main.c                 |  4 ++--
 12 files changed, 43 insertions(+), 43 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index c3e6fcc6..f5be4fa 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -545,7 +545,7 @@ static inline bool kvm_arch_requires_vhe(void)
 
 void kvm_arm_vcpu_ptrauth_trap(struct kvm_vcpu *vcpu);
 
-static inline void kvm_arch_hardware_unsetup(void) {}
+static inline void kvm_arch_hardware_teardown(void) {}
 static inline void kvm_arch_sync_events(struct kvm *kvm) {}
 static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
 static inline void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu) {}
diff --git a/arch/mips/include/asm/kvm_host.h b/arch/mips/include/asm/kvm_host.h
index 363e7a89..95cea05 100644
--- a/arch/mips/include/asm/kvm_host.h
+++ b/arch/mips/include/asm/kvm_host.h
@@ -1178,7 +1178,7 @@ extern int kvm_mips_trans_mtc0(union mips_instruction inst, u32 *opc,
 extern int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu,
 			     struct kvm_mips_interrupt *irq);
 
-static inline void kvm_arch_hardware_unsetup(void) {}
+static inline void kvm_arch_hardware_teardown(void) {}
 static inline void kvm_arch_sync_events(struct kvm *kvm) {}
 static inline void kvm_arch_free_memslot(struct kvm *kvm,
 					 struct kvm_memory_slot *slot) {}
diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h
index 7e2d061..892b0e2 100644
--- a/arch/powerpc/include/asm/kvm_host.h
+++ b/arch/powerpc/include/asm/kvm_host.h
@@ -856,7 +856,7 @@ struct kvm_vcpu_arch {
 #define __KVM_HAVE_CREATE_DEVICE
 
 static inline void kvm_arch_hardware_disable(void) {}
-static inline void kvm_arch_hardware_unsetup(void) {}
+static inline void kvm_arch_hardware_teardown(void) {}
 static inline void kvm_arch_sync_events(struct kvm *kvm) {}
 static inline void kvm_arch_memslots_updated(struct kvm *kvm, u64 gen) {}
 static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index d47c197..5cdddd9 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -312,7 +312,7 @@ int kvm_arch_hardware_setup(void *opaque)
 	return 0;
 }
 
-void kvm_arch_hardware_unsetup(void)
+void kvm_arch_hardware_teardown(void)
 {
 	gmap_unregister_pte_notifier(&gmap_notifier);
 	gmap_unregister_pte_notifier(&vsie_gmap_notifier);
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index be5363b..ccad66d 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -1080,7 +1080,7 @@ static inline u16 kvm_lapic_irq_dest_mode(bool dest_mode_logical)
 struct kvm_x86_ops {
 	int (*hardware_enable)(void);
 	void (*hardware_disable)(void);
-	void (*hardware_unsetup)(void);
+	void (*hardware_teardown)(void);
 	bool (*cpu_has_accelerated_tpr)(void);
 	bool (*has_emulated_msr)(u32 index);
 	void (*cpuid_update)(struct kvm_vcpu *vcpu);
@@ -1141,7 +1141,7 @@ struct kvm_x86_ops {
 	 */
 	void (*tlb_flush_guest)(struct kvm_vcpu *vcpu);
 
-	enum exit_fastpath_completion (*run)(struct kvm_vcpu *vcpu);
+	enum exit_fastpath_completion (*vcpu_run)(struct kvm_vcpu *vcpu);
 	int (*handle_exit)(struct kvm_vcpu *vcpu,
 		enum exit_fastpath_completion exit_fastpath);
 	int (*skip_emulated_instruction)(struct kvm_vcpu *vcpu);
@@ -1150,8 +1150,8 @@ struct kvm_x86_ops {
 	u32 (*get_interrupt_shadow)(struct kvm_vcpu *vcpu);
 	void (*patch_hypercall)(struct kvm_vcpu *vcpu,
 				unsigned char *hypercall_addr);
-	void (*set_irq)(struct kvm_vcpu *vcpu);
-	void (*set_nmi)(struct kvm_vcpu *vcpu);
+	void (*inject_irq)(struct kvm_vcpu *vcpu);
+	void (*inject_nmi)(struct kvm_vcpu *vcpu);
 	void (*queue_exception)(struct kvm_vcpu *vcpu);
 	void (*cancel_injection)(struct kvm_vcpu *vcpu);
 	int (*interrupt_allowed)(struct kvm_vcpu *vcpu, bool for_injection);
@@ -1258,8 +1258,8 @@ struct kvm_x86_ops {
 	void (*enable_smi_window)(struct kvm_vcpu *vcpu);
 
 	int (*mem_enc_op)(struct kvm *kvm, void __user *argp);
-	int (*mem_enc_reg_region)(struct kvm *kvm, struct kvm_enc_region *argp);
-	int (*mem_enc_unreg_region)(struct kvm *kvm, struct kvm_enc_region *argp);
+	int (*mem_enc_register_region)(struct kvm *kvm, struct kvm_enc_region *argp);
+	int (*mem_enc_unregister_region)(struct kvm *kvm, struct kvm_enc_region *argp);
 
 	int (*get_msr_feature)(struct kvm_msr_entry *entry);
 
diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c
index c0da4dd..24755eb 100644
--- a/arch/x86/kvm/svm/svm.c
+++ b/arch/x86/kvm/svm/svm.c
@@ -3969,7 +3969,7 @@ static int svm_vm_init(struct kvm *kvm)
 }
 
 static struct kvm_x86_ops svm_x86_ops __initdata = {
-	.hardware_unsetup = svm_hardware_teardown,
+	.hardware_teardown = svm_hardware_teardown,
 	.hardware_enable = svm_hardware_enable,
 	.hardware_disable = svm_hardware_disable,
 	.cpu_has_accelerated_tpr = svm_cpu_has_accelerated_tpr,
@@ -4016,15 +4016,15 @@ static int svm_vm_init(struct kvm *kvm)
 	.tlb_flush_gva = svm_flush_tlb_gva,
 	.tlb_flush_guest = svm_flush_tlb,
 
-	.run = svm_vcpu_run,
+	.vcpu_run = svm_vcpu_run,
 	.handle_exit = handle_exit,
 	.skip_emulated_instruction = skip_emulated_instruction,
 	.update_emulated_instruction = NULL,
 	.set_interrupt_shadow = svm_set_interrupt_shadow,
 	.get_interrupt_shadow = svm_get_interrupt_shadow,
 	.patch_hypercall = svm_patch_hypercall,
-	.set_irq = svm_set_irq,
-	.set_nmi = svm_inject_nmi,
+	.inject_irq = svm_set_irq,
+	.inject_nmi = svm_inject_nmi,
 	.queue_exception = svm_queue_exception,
 	.cancel_injection = svm_cancel_injection,
 	.interrupt_allowed = svm_interrupt_allowed,
@@ -4080,8 +4080,8 @@ static int svm_vm_init(struct kvm *kvm)
 	.enable_smi_window = enable_smi_window,
 
 	.mem_enc_op = svm_mem_enc_op,
-	.mem_enc_reg_region = svm_register_enc_region,
-	.mem_enc_unreg_region = svm_unregister_enc_region,
+	.mem_enc_register_region = svm_register_enc_region,
+	.mem_enc_unregister_region = svm_unregister_enc_region,
 
 	.need_emulation_on_page_fault = svm_need_emulation_on_page_fault,
 
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index cb22f33..90d91524 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -7844,7 +7844,7 @@ static bool vmx_check_apicv_inhibit_reasons(ulong bit)
 }
 
 static struct kvm_x86_ops vmx_x86_ops __initdata = {
-	.hardware_unsetup = hardware_unsetup,
+	.hardware_teardown = hardware_unsetup,
 
 	.hardware_enable = hardware_enable,
 	.hardware_disable = hardware_disable,
@@ -7889,15 +7889,15 @@ static bool vmx_check_apicv_inhibit_reasons(ulong bit)
 	.tlb_flush_gva = vmx_flush_tlb_gva,
 	.tlb_flush_guest = vmx_flush_tlb_guest,
 
-	.run = vmx_vcpu_run,
+	.vcpu_run = vmx_vcpu_run,
 	.handle_exit = vmx_handle_exit,
 	.skip_emulated_instruction = vmx_skip_emulated_instruction,
 	.update_emulated_instruction = vmx_update_emulated_instruction,
 	.set_interrupt_shadow = vmx_set_interrupt_shadow,
 	.get_interrupt_shadow = vmx_get_interrupt_shadow,
 	.patch_hypercall = vmx_patch_hypercall,
-	.set_irq = vmx_inject_irq,
-	.set_nmi = vmx_inject_nmi,
+	.inject_irq = vmx_inject_irq,
+	.inject_nmi = vmx_inject_nmi,
 	.queue_exception = vmx_queue_exception,
 	.cancel_injection = vmx_cancel_injection,
 	.interrupt_allowed = vmx_interrupt_allowed,
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 3b92db4..7cc164b 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -5256,13 +5256,13 @@ long kvm_arch_vm_ioctl(struct file *filp,
 		r = 0;
 		break;
 	}
-	case KVM_MEMORY_ENCRYPT_OP: {
+	case KVM_MEM_ENC_OP: {
 		r = -ENOTTY;
 		if (kvm_x86_ops.mem_enc_op)
 			r = kvm_x86_ops.mem_enc_op(kvm, argp);
 		break;
 	}
-	case KVM_MEMORY_ENCRYPT_REG_REGION: {
+	case KVM_MEM_ENC_REGISTER_REGION: {
 		struct kvm_enc_region region;
 
 		r = -EFAULT;
@@ -5270,11 +5270,11 @@ long kvm_arch_vm_ioctl(struct file *filp,
 			goto out;
 
 		r = -ENOTTY;
-		if (kvm_x86_ops.mem_enc_reg_region)
-			r = kvm_x86_ops.mem_enc_reg_region(kvm, &region);
+		if (kvm_x86_ops.mem_enc_register_region)
+			r = kvm_x86_ops.mem_enc_register_region(kvm, &region);
 		break;
 	}
-	case KVM_MEMORY_ENCRYPT_UNREG_REGION: {
+	case KVM_MEM_ENC_UNREGISTER_REGION: {
 		struct kvm_enc_region region;
 
 		r = -EFAULT;
@@ -5282,8 +5282,8 @@ long kvm_arch_vm_ioctl(struct file *filp,
 			goto out;
 
 		r = -ENOTTY;
-		if (kvm_x86_ops.mem_enc_unreg_region)
-			r = kvm_x86_ops.mem_enc_unreg_region(kvm, &region);
+		if (kvm_x86_ops.mem_enc_unregister_region)
+			r = kvm_x86_ops.mem_enc_unregister_region(kvm, &region);
 		break;
 	}
 	case KVM_HYPERV_EVENTFD: {
@@ -7788,10 +7788,10 @@ static void inject_pending_event(struct kvm_vcpu *vcpu, bool *req_immediate_exit
 	 */
 	else if (!vcpu->arch.exception.pending) {
 		if (vcpu->arch.nmi_injected) {
-			kvm_x86_ops.set_nmi(vcpu);
+			kvm_x86_ops.inject_nmi(vcpu);
 			can_inject = false;
 		} else if (vcpu->arch.interrupt.injected) {
-			kvm_x86_ops.set_irq(vcpu);
+			kvm_x86_ops.inject_irq(vcpu);
 			can_inject = false;
 		}
 	}
@@ -7867,7 +7867,7 @@ static void inject_pending_event(struct kvm_vcpu *vcpu, bool *req_immediate_exit
 		if (r) {
 			--vcpu->arch.nmi_pending;
 			vcpu->arch.nmi_injected = true;
-			kvm_x86_ops.set_nmi(vcpu);
+			kvm_x86_ops.inject_nmi(vcpu);
 			can_inject = false;
 			WARN_ON(kvm_x86_ops.nmi_allowed(vcpu, true) < 0);
 		}
@@ -7881,7 +7881,7 @@ static void inject_pending_event(struct kvm_vcpu *vcpu, bool *req_immediate_exit
 			goto busy;
 		if (r) {
 			kvm_queue_interrupt(vcpu, kvm_cpu_get_interrupt(vcpu), false);
-			kvm_x86_ops.set_irq(vcpu);
+			kvm_x86_ops.inject_irq(vcpu);
 			WARN_ON(kvm_x86_ops.interrupt_allowed(vcpu, true) < 0);
 		}
 		if (kvm_cpu_has_injectable_intr(vcpu))
@@ -8517,7 +8517,7 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu)
 		vcpu->arch.switch_db_regs &= ~KVM_DEBUGREG_RELOAD;
 	}
 
-	exit_fastpath = kvm_x86_ops.run(vcpu);
+	exit_fastpath = kvm_x86_ops.vcpu_run(vcpu);
 
 	/*
 	 * Do this here before restoring debug registers on the host.  And
@@ -9793,9 +9793,9 @@ int kvm_arch_hardware_setup(void *opaque)
 	return 0;
 }
 
-void kvm_arch_hardware_unsetup(void)
+void kvm_arch_hardware_teardown(void)
 {
-	kvm_x86_ops.hardware_unsetup();
+	kvm_x86_ops.hardware_teardown();
 }
 
 int kvm_arch_check_processor_compat(void *opaque)
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index d564855..b49312c 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -894,7 +894,7 @@ int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
 int kvm_arch_hardware_enable(void);
 void kvm_arch_hardware_disable(void);
 int kvm_arch_hardware_setup(void *opaque);
-void kvm_arch_hardware_unsetup(void);
+void kvm_arch_hardware_teardown(void);
 int kvm_arch_check_processor_compat(void *opaque);
 int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu);
 bool kvm_arch_vcpu_in_kernel(struct kvm_vcpu *vcpu);
diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h
index 4fdf303..cb6f153 100644
--- a/include/uapi/linux/kvm.h
+++ b/include/uapi/linux/kvm.h
@@ -1469,15 +1469,15 @@ struct kvm_s390_ucas_mapping {
 #define KVM_S390_GET_CMMA_BITS      _IOWR(KVMIO, 0xb8, struct kvm_s390_cmma_log)
 #define KVM_S390_SET_CMMA_BITS      _IOW(KVMIO, 0xb9, struct kvm_s390_cmma_log)
 /* Memory Encryption Commands */
-#define KVM_MEMORY_ENCRYPT_OP      _IOWR(KVMIO, 0xba, unsigned long)
+#define KVM_MEM_ENC_OP	            _IOWR(KVMIO, 0xba, unsigned long)
 
 struct kvm_enc_region {
 	__u64 addr;
 	__u64 size;
 };
 
-#define KVM_MEMORY_ENCRYPT_REG_REGION    _IOR(KVMIO, 0xbb, struct kvm_enc_region)
-#define KVM_MEMORY_ENCRYPT_UNREG_REGION  _IOR(KVMIO, 0xbc, struct kvm_enc_region)
+#define KVM_MEM_ENC_REGISTER_REGION    _IOR(KVMIO, 0xbb, struct kvm_enc_region)
+#define KVM_MEM_ENC_UNREGISTER_REGION  _IOR(KVMIO, 0xbc, struct kvm_enc_region)
 
 /* Available with KVM_CAP_HYPERV_EVENTFD */
 #define KVM_HYPERV_EVENTFD        _IOW(KVMIO,  0xbd, struct kvm_hyperv_eventfd)
diff --git a/tools/include/uapi/linux/kvm.h b/tools/include/uapi/linux/kvm.h
index 4fdf303..c341b2c 100644
--- a/tools/include/uapi/linux/kvm.h
+++ b/tools/include/uapi/linux/kvm.h
@@ -1469,15 +1469,15 @@ struct kvm_s390_ucas_mapping {
 #define KVM_S390_GET_CMMA_BITS      _IOWR(KVMIO, 0xb8, struct kvm_s390_cmma_log)
 #define KVM_S390_SET_CMMA_BITS      _IOW(KVMIO, 0xb9, struct kvm_s390_cmma_log)
 /* Memory Encryption Commands */
-#define KVM_MEMORY_ENCRYPT_OP      _IOWR(KVMIO, 0xba, unsigned long)
+#define KVM_MEM_ENC_OP              _IOWR(KVMIO, 0xba, unsigned long)
 
 struct kvm_enc_region {
 	__u64 addr;
 	__u64 size;
 };
 
-#define KVM_MEMORY_ENCRYPT_REG_REGION    _IOR(KVMIO, 0xbb, struct kvm_enc_region)
-#define KVM_MEMORY_ENCRYPT_UNREG_REGION  _IOR(KVMIO, 0xbc, struct kvm_enc_region)
+#define KVM_MEM_ENC_REGISTER_REGION    _IOR(KVMIO, 0xbb, struct kvm_enc_region)
+#define KVM_MEM_ENC_UNREGISTER_REGION  _IOR(KVMIO, 0xbc, struct kvm_enc_region)
 
 /* Available with KVM_CAP_HYPERV_EVENTFD */
 #define KVM_HYPERV_EVENTFD        _IOW(KVMIO,  0xbd, struct kvm_hyperv_eventfd)
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index a852af5..4625f3a 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -4786,7 +4786,7 @@ int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align,
 	unregister_reboot_notifier(&kvm_reboot_notifier);
 	cpuhp_remove_state_nocalls(CPUHP_AP_KVM_STARTING);
 out_free_2:
-	kvm_arch_hardware_unsetup();
+	kvm_arch_hardware_teardown();
 out_free_1:
 	free_cpumask_var(cpus_hardware_enabled);
 out_free_0:
@@ -4808,7 +4808,7 @@ void kvm_exit(void)
 	unregister_reboot_notifier(&kvm_reboot_notifier);
 	cpuhp_remove_state_nocalls(CPUHP_AP_KVM_STARTING);
 	on_each_cpu(hardware_disable_nolock, NULL, 1);
-	kvm_arch_hardware_unsetup();
+	kvm_arch_hardware_teardown();
 	kvm_arch_exit();
 	kvm_irqfd_exit();
 	free_cpumask_var(cpus_hardware_enabled);
-- 
1.8.3.1

[PATCH 2/6 v3] KVM: SVM: Fill in conforming svm_x86_ops via macro

[Krish Sadhukhan]

The names of some of the svm_x86_ops functions do not have a corresponding
'svm_' prefix. Generate the names using a macro so that the names are
conformant. Fixing the naming will help in better readability and
maintenance of the code.

Suggested-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Krish Sadhukhan <krish.sadhukhan@oracle.com>
---
 arch/x86/kvm/svm/avic.c   |   4 +-
 arch/x86/kvm/svm/nested.c |   2 +-
 arch/x86/kvm/svm/sev.c    |   6 +-
 arch/x86/kvm/svm/svm.c    | 218 +++++++++++++++++++++++-----------------------
 arch/x86/kvm/svm/svm.h    |   8 +-
 5 files changed, 120 insertions(+), 118 deletions(-)

diff --git a/arch/x86/kvm/svm/avic.c b/arch/x86/kvm/svm/avic.c
index e80daa9..619391e 100644
--- a/arch/x86/kvm/svm/avic.c
+++ b/arch/x86/kvm/svm/avic.c
@@ -579,7 +579,7 @@ int avic_init_vcpu(struct vcpu_svm *svm)
 	return ret;
 }
 
-void avic_post_state_restore(struct kvm_vcpu *vcpu)
+void svm_avic_post_state_restore(struct kvm_vcpu *vcpu)
 {
 	if (avic_handle_apic_id_update(vcpu) != 0)
 		return;
@@ -660,7 +660,7 @@ void svm_refresh_apicv_exec_ctrl(struct kvm_vcpu *vcpu)
 		 * we need to check and update the AVIC logical APIC ID table
 		 * accordingly before re-activating.
 		 */
-		avic_post_state_restore(vcpu);
+		svm_avic_post_state_restore(vcpu);
 		vmcb->control.int_ctl |= AVIC_ENABLE_MASK;
 	} else {
 		vmcb->control.int_ctl &= ~AVIC_ENABLE_MASK;
diff --git a/arch/x86/kvm/svm/nested.c b/arch/x86/kvm/svm/nested.c
index 6bceafb..3be6256 100644
--- a/arch/x86/kvm/svm/nested.c
+++ b/arch/x86/kvm/svm/nested.c
@@ -348,7 +348,7 @@ static void nested_prepare_vmcb_control(struct vcpu_svm *svm)
 	/* Guest paging mode is active - reset mmu */
 	kvm_mmu_reset_context(&svm->vcpu);
 
-	svm_flush_tlb(&svm->vcpu);
+	svm_tlb_flush(&svm->vcpu);
 
 	svm->vmcb->control.tsc_offset = svm->vcpu.arch.tsc_offset =
 		svm->vcpu.arch.l1_tsc_offset + svm->nested.ctl.tsc_offset;
diff --git a/arch/x86/kvm/svm/sev.c b/arch/x86/kvm/svm/sev.c
index 5573a97..1ca9f60 100644
--- a/arch/x86/kvm/svm/sev.c
+++ b/arch/x86/kvm/svm/sev.c
@@ -969,7 +969,7 @@ int svm_mem_enc_op(struct kvm *kvm, void __user *argp)
 	return r;
 }
 
-int svm_register_enc_region(struct kvm *kvm,
+int svm_mem_enc_register_region(struct kvm *kvm,
 			    struct kvm_enc_region *range)
 {
 	struct kvm_sev_info *sev = &to_kvm_svm(kvm)->sev_info;
@@ -1038,8 +1038,8 @@ static void __unregister_enc_region_locked(struct kvm *kvm,
 	kfree(region);
 }
 
-int svm_unregister_enc_region(struct kvm *kvm,
-			      struct kvm_enc_region *range)
+int svm_mem_enc_unregister_region(struct kvm *kvm,
+				  struct kvm_enc_region *range)
 {
 	struct enc_region *region;
 	int ret;
diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c
index 24755eb..d63181e 100644
--- a/arch/x86/kvm/svm/svm.c
+++ b/arch/x86/kvm/svm/svm.c
@@ -254,7 +254,7 @@ static inline void invlpga(unsigned long addr, u32 asid)
 	asm volatile (__ex("invlpga %1, %0") : : "c"(asid), "a"(addr));
 }
 
-static int get_npt_level(struct kvm_vcpu *vcpu)
+static int svm_get_tdp_level(struct kvm_vcpu *vcpu)
 {
 #ifdef CONFIG_X86_64
 	return PT64_ROOT_4LEVEL;
@@ -312,7 +312,7 @@ static void svm_set_interrupt_shadow(struct kvm_vcpu *vcpu, int mask)
 
 }
 
-static int skip_emulated_instruction(struct kvm_vcpu *vcpu)
+static int svm_skip_emulated_instruction(struct kvm_vcpu *vcpu)
 {
 	struct vcpu_svm *svm = to_svm(vcpu);
 
@@ -351,7 +351,7 @@ static void svm_queue_exception(struct kvm_vcpu *vcpu)
 		 * raises a fault that is not intercepted. Still better than
 		 * failing in all cases.
 		 */
-		(void)skip_emulated_instruction(&svm->vcpu);
+		(void)svm_skip_emulated_instruction(&svm->vcpu);
 		rip = kvm_rip_read(&svm->vcpu);
 		svm->int3_rip = rip + svm->vmcb->save.cs.base;
 		svm->int3_injected = rip - old_rip;
@@ -1153,7 +1153,7 @@ static void svm_vcpu_reset(struct kvm_vcpu *vcpu, bool init_event)
 		avic_update_vapic_bar(svm, APIC_DEFAULT_PHYS_BASE);
 }
 
-static int svm_create_vcpu(struct kvm_vcpu *vcpu)
+static int svm_vcpu_create(struct kvm_vcpu *vcpu)
 {
 	struct vcpu_svm *svm;
 	struct page *page;
@@ -1232,7 +1232,7 @@ static void svm_clear_current_vmcb(struct vmcb *vmcb)
 		cmpxchg(&per_cpu(svm_data, i)->current_vmcb, vmcb, NULL);
 }
 
-static void svm_free_vcpu(struct kvm_vcpu *vcpu)
+static void svm_vcpu_free(struct kvm_vcpu *vcpu)
 {
 	struct vcpu_svm *svm = to_svm(vcpu);
 
@@ -1585,7 +1585,7 @@ int svm_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4)
 		return 1;
 
 	if (npt_enabled && ((old_cr4 ^ cr4) & X86_CR4_PGE))
-		svm_flush_tlb(vcpu);
+		svm_tlb_flush(vcpu);
 
 	vcpu->arch.cr4 = cr4;
 	if (!npt_enabled)
@@ -1627,7 +1627,7 @@ static void svm_set_segment(struct kvm_vcpu *vcpu,
 	mark_dirty(svm->vmcb, VMCB_SEG);
 }
 
-static void update_bp_intercept(struct kvm_vcpu *vcpu)
+static void svm_update_bp_intercept(struct kvm_vcpu *vcpu)
 {
 	struct vcpu_svm *svm = to_svm(vcpu);
 
@@ -2143,7 +2143,7 @@ static int task_switch_interception(struct vcpu_svm *svm)
 	    int_type == SVM_EXITINTINFO_TYPE_SOFT ||
 	    (int_type == SVM_EXITINTINFO_TYPE_EXEPT &&
 	     (int_vec == OF_VECTOR || int_vec == BP_VECTOR))) {
-		if (!skip_emulated_instruction(&svm->vcpu))
+		if (!svm_skip_emulated_instruction(&svm->vcpu))
 			return 0;
 	}
 
@@ -2909,7 +2909,7 @@ static void svm_get_exit_info(struct kvm_vcpu *vcpu, u64 *info1, u64 *info2)
 	*info2 = control->exit_info_2;
 }
 
-static int handle_exit(struct kvm_vcpu *vcpu, fastpath_t exit_fastpath)
+static int svm_handle_exit(struct kvm_vcpu *vcpu, fastpath_t exit_fastpath)
 {
 	struct vcpu_svm *svm = to_svm(vcpu);
 	struct kvm_run *kvm_run = vcpu->run;
@@ -3023,7 +3023,7 @@ static void svm_inject_nmi(struct kvm_vcpu *vcpu)
 	++vcpu->stat.nmi_injections;
 }
 
-static void svm_set_irq(struct kvm_vcpu *vcpu)
+static void svm_inject_irq(struct kvm_vcpu *vcpu)
 {
 	struct vcpu_svm *svm = to_svm(vcpu);
 
@@ -3036,7 +3036,7 @@ static void svm_set_irq(struct kvm_vcpu *vcpu)
 		SVM_EVTINJ_VALID | SVM_EVTINJ_TYPE_INTR;
 }
 
-static void update_cr8_intercept(struct kvm_vcpu *vcpu, int tpr, int irr)
+static void svm_update_cr8_intercept(struct kvm_vcpu *vcpu, int tpr, int irr)
 {
 	struct vcpu_svm *svm = to_svm(vcpu);
 
@@ -3145,7 +3145,7 @@ static int svm_interrupt_allowed(struct kvm_vcpu *vcpu, bool for_injection)
 	return !svm_interrupt_blocked(vcpu);
 }
 
-static void enable_irq_window(struct kvm_vcpu *vcpu)
+static void svm_enable_irq_window(struct kvm_vcpu *vcpu)
 {
 	struct vcpu_svm *svm = to_svm(vcpu);
 
@@ -3169,7 +3169,7 @@ static void enable_irq_window(struct kvm_vcpu *vcpu)
 	}
 }
 
-static void enable_nmi_window(struct kvm_vcpu *vcpu)
+static void svm_enable_nmi_window(struct kvm_vcpu *vcpu)
 {
 	struct vcpu_svm *svm = to_svm(vcpu);
 
@@ -3202,7 +3202,7 @@ static int svm_set_identity_map_addr(struct kvm *kvm, u64 ident_addr)
 	return 0;
 }
 
-void svm_flush_tlb(struct kvm_vcpu *vcpu)
+void svm_tlb_flush(struct kvm_vcpu *vcpu)
 {
 	struct vcpu_svm *svm = to_svm(vcpu);
 
@@ -3219,7 +3219,7 @@ void svm_flush_tlb(struct kvm_vcpu *vcpu)
 		svm->asid_generation--;
 }
 
-static void svm_flush_tlb_gva(struct kvm_vcpu *vcpu, gva_t gva)
+static void svm_tlb_flush_gva(struct kvm_vcpu *vcpu, gva_t gva)
 {
 	struct vcpu_svm *svm = to_svm(vcpu);
 
@@ -3857,7 +3857,7 @@ static int svm_pre_leave_smm(struct kvm_vcpu *vcpu, const char *smstate)
 	return 0;
 }
 
-static void enable_smi_window(struct kvm_vcpu *vcpu)
+static void svm_enable_smi_window(struct kvm_vcpu *vcpu)
 {
 	struct vcpu_svm *svm = to_svm(vcpu);
 
@@ -3968,124 +3968,126 @@ static int svm_vm_init(struct kvm *kvm)
 	return 0;
 }
 
+#define KVM_X86_OP(name) .name = svm_##name
+
 static struct kvm_x86_ops svm_x86_ops __initdata = {
-	.hardware_teardown = svm_hardware_teardown,
-	.hardware_enable = svm_hardware_enable,
-	.hardware_disable = svm_hardware_disable,
-	.cpu_has_accelerated_tpr = svm_cpu_has_accelerated_tpr,
-	.has_emulated_msr = svm_has_emulated_msr,
+	KVM_X86_OP(hardware_teardown),
+	KVM_X86_OP(hardware_enable),
+	KVM_X86_OP(hardware_disable),
+	KVM_X86_OP(cpu_has_accelerated_tpr),
+	KVM_X86_OP(has_emulated_msr),
 
-	.vcpu_create = svm_create_vcpu,
-	.vcpu_free = svm_free_vcpu,
-	.vcpu_reset = svm_vcpu_reset,
+	KVM_X86_OP(vcpu_create),
+	KVM_X86_OP(vcpu_free),
+	KVM_X86_OP(vcpu_reset),
 
 	.vm_size = sizeof(struct kvm_svm),
-	.vm_init = svm_vm_init,
-	.vm_destroy = svm_vm_destroy,
-
-	.prepare_guest_switch = svm_prepare_guest_switch,
-	.vcpu_load = svm_vcpu_load,
-	.vcpu_put = svm_vcpu_put,
-	.vcpu_blocking = svm_vcpu_blocking,
-	.vcpu_unblocking = svm_vcpu_unblocking,
-
-	.update_bp_intercept = update_bp_intercept,
-	.get_msr_feature = svm_get_msr_feature,
-	.get_msr = svm_get_msr,
-	.set_msr = svm_set_msr,
-	.get_segment_base = svm_get_segment_base,
-	.get_segment = svm_get_segment,
-	.set_segment = svm_set_segment,
-	.get_cpl = svm_get_cpl,
+	KVM_X86_OP(vm_init),
+	KVM_X86_OP(vm_destroy),
+
+	KVM_X86_OP(prepare_guest_switch),
+	KVM_X86_OP(vcpu_load),
+	KVM_X86_OP(vcpu_put),
+	KVM_X86_OP(vcpu_blocking),
+	KVM_X86_OP(vcpu_unblocking),
+
+	KVM_X86_OP(update_bp_intercept),
+	KVM_X86_OP(get_msr_feature),
+	KVM_X86_OP(get_msr),
+	KVM_X86_OP(set_msr),
+	KVM_X86_OP(get_segment_base),
+	KVM_X86_OP(get_segment),
+	KVM_X86_OP(set_segment),
+	KVM_X86_OP(get_cpl),
 	.get_cs_db_l_bits = kvm_get_cs_db_l_bits,
-	.set_cr0 = svm_set_cr0,
-	.set_cr4 = svm_set_cr4,
-	.set_efer = svm_set_efer,
-	.get_idt = svm_get_idt,
-	.set_idt = svm_set_idt,
-	.get_gdt = svm_get_gdt,
-	.set_gdt = svm_set_gdt,
-	.set_dr7 = svm_set_dr7,
-	.sync_dirty_debug_regs = svm_sync_dirty_debug_regs,
-	.cache_reg = svm_cache_reg,
-	.get_rflags = svm_get_rflags,
-	.set_rflags = svm_set_rflags,
-
-	.tlb_flush_all = svm_flush_tlb,
-	.tlb_flush_current = svm_flush_tlb,
-	.tlb_flush_gva = svm_flush_tlb_gva,
-	.tlb_flush_guest = svm_flush_tlb,
-
-	.vcpu_run = svm_vcpu_run,
-	.handle_exit = handle_exit,
-	.skip_emulated_instruction = skip_emulated_instruction,
+	KVM_X86_OP(set_cr0),
+	KVM_X86_OP(set_cr4),
+	KVM_X86_OP(set_efer),
+	KVM_X86_OP(get_idt),
+	KVM_X86_OP(set_idt),
+	KVM_X86_OP(get_gdt),
+	KVM_X86_OP(set_gdt),
+	KVM_X86_OP(set_dr7),
+	KVM_X86_OP(sync_dirty_debug_regs),
+	KVM_X86_OP(cache_reg),
+	KVM_X86_OP(get_rflags),
+	KVM_X86_OP(set_rflags),
+
+	.tlb_flush_all = svm_tlb_flush,
+	.tlb_flush_current = svm_tlb_flush,
+	KVM_X86_OP(tlb_flush_gva),
+	.tlb_flush_guest = svm_tlb_flush,
+
+	KVM_X86_OP(vcpu_run),
+	KVM_X86_OP(handle_exit),
+	KVM_X86_OP(skip_emulated_instruction),
 	.update_emulated_instruction = NULL,
-	.set_interrupt_shadow = svm_set_interrupt_shadow,
-	.get_interrupt_shadow = svm_get_interrupt_shadow,
-	.patch_hypercall = svm_patch_hypercall,
-	.inject_irq = svm_set_irq,
-	.inject_nmi = svm_inject_nmi,
-	.queue_exception = svm_queue_exception,
-	.cancel_injection = svm_cancel_injection,
-	.interrupt_allowed = svm_interrupt_allowed,
-	.nmi_allowed = svm_nmi_allowed,
-	.get_nmi_mask = svm_get_nmi_mask,
-	.set_nmi_mask = svm_set_nmi_mask,
-	.enable_nmi_window = enable_nmi_window,
-	.enable_irq_window = enable_irq_window,
-	.update_cr8_intercept = update_cr8_intercept,
-	.set_virtual_apic_mode = svm_set_virtual_apic_mode,
-	.refresh_apicv_exec_ctrl = svm_refresh_apicv_exec_ctrl,
-	.check_apicv_inhibit_reasons = svm_check_apicv_inhibit_reasons,
-	.pre_update_apicv_exec_ctrl = svm_pre_update_apicv_exec_ctrl,
-	.load_eoi_exitmap = svm_load_eoi_exitmap,
-	.hwapic_irr_update = svm_hwapic_irr_update,
-	.hwapic_isr_update = svm_hwapic_isr_update,
+	KVM_X86_OP(set_interrupt_shadow),
+	KVM_X86_OP(get_interrupt_shadow),
+	KVM_X86_OP(patch_hypercall),
+	KVM_X86_OP(inject_irq),
+	KVM_X86_OP(inject_nmi),
+	KVM_X86_OP(queue_exception),
+	KVM_X86_OP(cancel_injection),
+	KVM_X86_OP(interrupt_allowed),
+	KVM_X86_OP(nmi_allowed),
+	KVM_X86_OP(get_nmi_mask),
+	KVM_X86_OP(set_nmi_mask),
+	KVM_X86_OP(enable_nmi_window),
+	KVM_X86_OP(enable_irq_window),
+	KVM_X86_OP(update_cr8_intercept),
+	KVM_X86_OP(set_virtual_apic_mode),
+	KVM_X86_OP(refresh_apicv_exec_ctrl),
+	KVM_X86_OP(check_apicv_inhibit_reasons),
+	KVM_X86_OP(pre_update_apicv_exec_ctrl),
+	KVM_X86_OP(load_eoi_exitmap),
+	KVM_X86_OP(hwapic_irr_update),
+	KVM_X86_OP(hwapic_isr_update),
 	.sync_pir_to_irr = kvm_lapic_find_highest_irr,
-	.apicv_post_state_restore = avic_post_state_restore,
+	.apicv_post_state_restore = svm_avic_post_state_restore,
 
-	.set_tss_addr = svm_set_tss_addr,
-	.set_identity_map_addr = svm_set_identity_map_addr,
-	.get_tdp_level = get_npt_level,
-	.get_mt_mask = svm_get_mt_mask,
+	KVM_X86_OP(set_tss_addr),
+	KVM_X86_OP(set_identity_map_addr),
+	KVM_X86_OP(get_tdp_level),
+	KVM_X86_OP(get_mt_mask),
 
-	.get_exit_info = svm_get_exit_info,
+	KVM_X86_OP(get_exit_info),
 
-	.cpuid_update = svm_cpuid_update,
+	KVM_X86_OP(cpuid_update),
 
-	.has_wbinvd_exit = svm_has_wbinvd_exit,
+	KVM_X86_OP(has_wbinvd_exit),
 
-	.write_l1_tsc_offset = svm_write_l1_tsc_offset,
+	KVM_X86_OP(write_l1_tsc_offset),
 
-	.load_mmu_pgd = svm_load_mmu_pgd,
+	KVM_X86_OP(load_mmu_pgd),
 
-	.check_intercept = svm_check_intercept,
-	.handle_exit_irqoff = svm_handle_exit_irqoff,
+	KVM_X86_OP(check_intercept),
+	KVM_X86_OP(handle_exit_irqoff),
 
 	.request_immediate_exit = __kvm_request_immediate_exit,
 
-	.sched_in = svm_sched_in,
+	KVM_X86_OP(sched_in),
 
 	.pmu_ops = &amd_pmu_ops,
 	.nested_ops = &svm_nested_ops,
 
 	.deliver_posted_interrupt = svm_deliver_avic_intr,
-	.dy_apicv_has_pending_interrupt = svm_dy_apicv_has_pending_interrupt,
-	.update_pi_irte = svm_update_pi_irte,
-	.setup_mce = svm_setup_mce,
+	KVM_X86_OP(dy_apicv_has_pending_interrupt),
+	KVM_X86_OP(update_pi_irte),
+	KVM_X86_OP(setup_mce),
 
-	.smi_allowed = svm_smi_allowed,
-	.pre_enter_smm = svm_pre_enter_smm,
-	.pre_leave_smm = svm_pre_leave_smm,
-	.enable_smi_window = enable_smi_window,
+	KVM_X86_OP(smi_allowed),
+	KVM_X86_OP(pre_enter_smm),
+	KVM_X86_OP(pre_leave_smm),
+	KVM_X86_OP(enable_smi_window),
 
-	.mem_enc_op = svm_mem_enc_op,
-	.mem_enc_register_region = svm_register_enc_region,
-	.mem_enc_unregister_region = svm_unregister_enc_region,
+	KVM_X86_OP(mem_enc_op),
+	KVM_X86_OP(mem_enc_register_region),
+	KVM_X86_OP(mem_enc_unregister_region),
 
-	.need_emulation_on_page_fault = svm_need_emulation_on_page_fault,
+	KVM_X86_OP(need_emulation_on_page_fault),
 
-	.apic_init_signal_blocked = svm_apic_init_signal_blocked,
+	KVM_X86_OP(apic_init_signal_blocked),
 };
 
 static struct kvm_x86_init_ops svm_init_ops __initdata = {
diff --git a/arch/x86/kvm/svm/svm.h b/arch/x86/kvm/svm/svm.h
index 6ac4c00..e2d5029 100644
--- a/arch/x86/kvm/svm/svm.h
+++ b/arch/x86/kvm/svm/svm.h
@@ -352,7 +352,7 @@ static inline bool gif_set(struct vcpu_svm *svm)
 void svm_set_efer(struct kvm_vcpu *vcpu, u64 efer);
 void svm_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0);
 int svm_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4);
-void svm_flush_tlb(struct kvm_vcpu *vcpu);
+void svm_tlb_flush(struct kvm_vcpu *vcpu);
 void disable_nmi_singlestep(struct vcpu_svm *svm);
 bool svm_smi_blocked(struct kvm_vcpu *vcpu);
 bool svm_nmi_blocked(struct kvm_vcpu *vcpu);
@@ -444,7 +444,7 @@ static inline bool avic_vcpu_is_running(struct kvm_vcpu *vcpu)
 int avic_init_vcpu(struct vcpu_svm *svm);
 void avic_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
 void avic_vcpu_put(struct kvm_vcpu *vcpu);
-void avic_post_state_restore(struct kvm_vcpu *vcpu);
+void svm_avic_post_state_restore(struct kvm_vcpu *vcpu);
 void svm_set_virtual_apic_mode(struct kvm_vcpu *vcpu);
 void svm_refresh_apicv_exec_ctrl(struct kvm_vcpu *vcpu);
 bool svm_check_apicv_inhibit_reasons(ulong bit);
@@ -481,9 +481,9 @@ static inline bool svm_sev_enabled(void)
 
 void sev_vm_destroy(struct kvm *kvm);
 int svm_mem_enc_op(struct kvm *kvm, void __user *argp);
-int svm_register_enc_region(struct kvm *kvm,
+int svm_mem_enc_register_region(struct kvm *kvm,
 			    struct kvm_enc_region *range);
-int svm_unregister_enc_region(struct kvm *kvm,
+int svm_mem_enc_unregister_region(struct kvm *kvm,
 			      struct kvm_enc_region *range);
 void pre_sev_run(struct vcpu_svm *svm, int cpu);
 int __init sev_hardware_setup(void);
-- 
1.8.3.1

[PATCH 3/6 v3] KVM: nSVM: Fill in conforming svm_nested_ops via macro

[Krish Sadhukhan]

The names of the nested_svm_ops functions do not have a corresponding
'nested_svm_' prefix. Generate the names using a macro so that the names are
conformant. Fixing the naming will help in better readability and
maintenance of the code.

Suggested-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Krish Sadhukhan <krish.sadhukhan@oracle.com>
---
 arch/x86/kvm/svm/nested.c | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/arch/x86/kvm/svm/nested.c b/arch/x86/kvm/svm/nested.c
index 3be6256..7cb834a 100644
--- a/arch/x86/kvm/svm/nested.c
+++ b/arch/x86/kvm/svm/nested.c
@@ -718,7 +718,7 @@ static int nested_svm_intercept(struct vcpu_svm *svm)
 		/*
 		 * Host-intercepted exceptions have been checked already in
 		 * nested_svm_exit_special.  There is nothing to do here,
-		 * the vmexit is injected by svm_check_nested_events.
+		 * the vmexit is injected by nested_svm_check_events().
 		 */
 		vmexit = NESTED_EXIT_DONE;
 		break;
@@ -850,7 +850,7 @@ static void nested_svm_init(struct vcpu_svm *svm)
 }
 
 
-static int svm_check_nested_events(struct kvm_vcpu *vcpu)
+static int nested_svm_check_events(struct kvm_vcpu *vcpu)
 {
 	struct vcpu_svm *svm = to_svm(vcpu);
 	bool block_nested_events =
@@ -933,7 +933,7 @@ int nested_svm_exit_special(struct vcpu_svm *svm)
 	return NESTED_EXIT_CONTINUE;
 }
 
-static int svm_get_nested_state(struct kvm_vcpu *vcpu,
+static int nested_svm_get_state(struct kvm_vcpu *vcpu,
 				struct kvm_nested_state __user *user_kvm_nested_state,
 				u32 user_data_size)
 {
@@ -990,7 +990,7 @@ static int svm_get_nested_state(struct kvm_vcpu *vcpu,
 	return kvm_state.size;
 }
 
-static int svm_set_nested_state(struct kvm_vcpu *vcpu,
+static int nested_svm_set_state(struct kvm_vcpu *vcpu,
 				struct kvm_nested_state __user *user_kvm_nested_state,
 				struct kvm_nested_state *kvm_state)
 {
@@ -1075,8 +1075,10 @@ static int svm_set_nested_state(struct kvm_vcpu *vcpu,
 	return 0;
 }
 
+#define KVM_X86_NESTED_OP(name) .name = nested_svm_##name
+
 struct kvm_x86_nested_ops svm_nested_ops = {
-	.check_events = svm_check_nested_events,
-	.get_state = svm_get_nested_state,
-	.set_state = svm_set_nested_state,
+	KVM_X86_NESTED_OP(check_events),
+	KVM_X86_NESTED_OP(get_state),
+	KVM_X86_NESTED_OP(set_state),
 };
-- 
1.8.3.1

[PATCH 4/6 v3] KVM: VMX: Fill in conforming vmx_x86_ops via macro

[Krish Sadhukhan]

The names of some of the vmx_x86_ops functions do not have a corresponding
'vmx_' prefix. Generate the names using a macro so that the names are
conformant. Fixing the naming will help in better readability and
maintenance of the code.

Suggested-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Krish Sadhukhan <krish.sadhukhan@oracle.com>
---
 arch/x86/kvm/vmx/nested.c |   2 +-
 arch/x86/kvm/vmx/vmx.c    | 234 +++++++++++++++++++++++-----------------------
 arch/x86/kvm/vmx/vmx.h    |   2 +-
 3 files changed, 120 insertions(+), 118 deletions(-)

diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c
index d1af20b..a898b53 100644
--- a/arch/x86/kvm/vmx/nested.c
+++ b/arch/x86/kvm/vmx/nested.c
@@ -3016,7 +3016,7 @@ static int nested_vmx_check_vmentry_hw(struct kvm_vcpu *vcpu)
 
 	preempt_disable();
 
-	vmx_prepare_switch_to_guest(vcpu);
+	vmx_prepare_guest_switch(vcpu);
 
 	/*
 	 * Induce a consistency check VMExit by clearing bit 1 in GUEST_RFLAGS,
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index 90d91524..f6a6674 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -1125,7 +1125,7 @@ void vmx_set_host_fs_gs(struct vmcs_host_state *host, u16 fs_sel, u16 gs_sel,
 	}
 }
 
-void vmx_prepare_switch_to_guest(struct kvm_vcpu *vcpu)
+void vmx_prepare_guest_switch(struct kvm_vcpu *vcpu)
 {
 	struct vcpu_vmx *vmx = to_vmx(vcpu);
 	struct vmcs_host_state *host_state;
@@ -2317,7 +2317,7 @@ static int kvm_cpu_vmxon(u64 vmxon_pointer)
 	return -EFAULT;
 }
 
-static int hardware_enable(void)
+static int vmx_hardware_enable(void)
 {
 	int cpu = raw_smp_processor_id();
 	u64 phys_addr = __pa(per_cpu(vmxarea, cpu));
@@ -2366,7 +2366,7 @@ static void kvm_cpu_vmxoff(void)
 	cr4_clear_bits(X86_CR4_VMXE);
 }
 
-static void hardware_disable(void)
+static void vmx_hardware_disable(void)
 {
 	vmclear_local_loaded_vmcss();
 	kvm_cpu_vmxoff();
@@ -2911,7 +2911,7 @@ static void exit_lmode(struct kvm_vcpu *vcpu)
 
 #endif
 
-static void vmx_flush_tlb_all(struct kvm_vcpu *vcpu)
+static void vmx_tlb_flush_all(struct kvm_vcpu *vcpu)
 {
 	struct vcpu_vmx *vmx = to_vmx(vcpu);
 
@@ -2934,7 +2934,7 @@ static void vmx_flush_tlb_all(struct kvm_vcpu *vcpu)
 	}
 }
 
-static void vmx_flush_tlb_current(struct kvm_vcpu *vcpu)
+static void vmx_tlb_flush_current(struct kvm_vcpu *vcpu)
 {
 	u64 root_hpa = vcpu->arch.mmu->root_hpa;
 
@@ -2950,16 +2950,16 @@ static void vmx_flush_tlb_current(struct kvm_vcpu *vcpu)
 		vpid_sync_context(nested_get_vpid02(vcpu));
 }
 
-static void vmx_flush_tlb_gva(struct kvm_vcpu *vcpu, gva_t addr)
+static void vmx_tlb_flush_gva(struct kvm_vcpu *vcpu, gva_t addr)
 {
 	/*
 	 * vpid_sync_vcpu_addr() is a nop if vmx->vpid==0, see the comment in
-	 * vmx_flush_tlb_guest() for an explanation of why this is ok.
+	 * vmx_tlb_flush_guest() for an explanation of why this is ok.
 	 */
 	vpid_sync_vcpu_addr(to_vmx(vcpu)->vpid, addr);
 }
 
-static void vmx_flush_tlb_guest(struct kvm_vcpu *vcpu)
+static void vmx_tlb_flush_guest(struct kvm_vcpu *vcpu)
 {
 	/*
 	 * vpid_sync_context() is a nop if vmx->vpid==0, e.g. if enable_vpid==0
@@ -4455,16 +4455,16 @@ static void vmx_vcpu_reset(struct kvm_vcpu *vcpu, bool init_event)
 		vmx_clear_hlt(vcpu);
 }
 
-static void enable_irq_window(struct kvm_vcpu *vcpu)
+static void vmx_enable_irq_window(struct kvm_vcpu *vcpu)
 {
 	exec_controls_setbit(to_vmx(vcpu), CPU_BASED_INTR_WINDOW_EXITING);
 }
 
-static void enable_nmi_window(struct kvm_vcpu *vcpu)
+static void vmx_enable_nmi_window(struct kvm_vcpu *vcpu)
 {
 	if (!enable_vnmi ||
 	    vmcs_read32(GUEST_INTERRUPTIBILITY_INFO) & GUEST_INTR_STATE_STI) {
-		enable_irq_window(vcpu);
+		vmx_enable_irq_window(vcpu);
 		return;
 	}
 
@@ -6173,7 +6173,7 @@ static void vmx_l1d_flush(struct kvm_vcpu *vcpu)
 		: "eax", "ebx", "ecx", "edx");
 }
 
-static void update_cr8_intercept(struct kvm_vcpu *vcpu, int tpr, int irr)
+static void vmx_update_cr8_intercept(struct kvm_vcpu *vcpu, int tpr, int irr)
 {
 	struct vmcs12 *vmcs12 = get_vmcs12(vcpu);
 	int tpr_threshold;
@@ -6261,7 +6261,7 @@ static void vmx_set_apic_access_page_addr(struct kvm_vcpu *vcpu)
 		return;
 
 	vmcs_write64(APIC_ACCESS_ADDR, page_to_phys(page));
-	vmx_flush_tlb_current(vcpu);
+	vmx_tlb_flush_current(vcpu);
 
 	/*
 	 * Do not pin apic access page in memory, the MMU notifier
@@ -6837,7 +6837,7 @@ static fastpath_t vmx_vcpu_run(struct kvm_vcpu *vcpu)
 	return exit_fastpath;
 }
 
-static void vmx_free_vcpu(struct kvm_vcpu *vcpu)
+static void vmx_vcpu_free(struct kvm_vcpu *vcpu)
 {
 	struct vcpu_vmx *vmx = to_vmx(vcpu);
 
@@ -6848,7 +6848,7 @@ static void vmx_free_vcpu(struct kvm_vcpu *vcpu)
 	free_loaded_vmcs(vmx->loaded_vmcs);
 }
 
-static int vmx_create_vcpu(struct kvm_vcpu *vcpu)
+static int vmx_vcpu_create(struct kvm_vcpu *vcpu)
 {
 	struct vcpu_vmx *vmx;
 	unsigned long *msr_bitmap;
@@ -7802,7 +7802,7 @@ static int vmx_pre_leave_smm(struct kvm_vcpu *vcpu, const char *smstate)
 	return 0;
 }
 
-static void enable_smi_window(struct kvm_vcpu *vcpu)
+static void vmx_enable_smi_window(struct kvm_vcpu *vcpu)
 {
 	/* RSM will cause a vmexit anyway.  */
 }
@@ -7827,7 +7827,7 @@ static void vmx_migrate_timers(struct kvm_vcpu *vcpu)
 	}
 }
 
-static void hardware_unsetup(void)
+static void vmx_hardware_teardown(void)
 {
 	if (nested)
 		nested_vmx_hardware_unsetup();
@@ -7843,134 +7843,136 @@ static bool vmx_check_apicv_inhibit_reasons(ulong bit)
 	return supported & BIT(bit);
 }
 
+#define KVM_X86_OP(name) .name = vmx_##name
+
 static struct kvm_x86_ops vmx_x86_ops __initdata = {
-	.hardware_teardown = hardware_unsetup,
+	KVM_X86_OP(hardware_teardown),
 
-	.hardware_enable = hardware_enable,
-	.hardware_disable = hardware_disable,
+	KVM_X86_OP(hardware_enable),
+	KVM_X86_OP(hardware_disable),
 	.cpu_has_accelerated_tpr = report_flexpriority,
-	.has_emulated_msr = vmx_has_emulated_msr,
+	KVM_X86_OP(has_emulated_msr),
 
 	.vm_size = sizeof(struct kvm_vmx),
-	.vm_init = vmx_vm_init,
+	KVM_X86_OP(vm_init),
 
-	.vcpu_create = vmx_create_vcpu,
-	.vcpu_free = vmx_free_vcpu,
-	.vcpu_reset = vmx_vcpu_reset,
+	KVM_X86_OP(vcpu_create),
+	KVM_X86_OP(vcpu_free),
+	KVM_X86_OP(vcpu_reset),
 
-	.prepare_guest_switch = vmx_prepare_switch_to_guest,
-	.vcpu_load = vmx_vcpu_load,
-	.vcpu_put = vmx_vcpu_put,
+	KVM_X86_OP(prepare_guest_switch),
+	KVM_X86_OP(vcpu_load),
+	KVM_X86_OP(vcpu_put),
 
 	.update_bp_intercept = update_exception_bitmap,
-	.get_msr_feature = vmx_get_msr_feature,
-	.get_msr = vmx_get_msr,
-	.set_msr = vmx_set_msr,
-	.get_segment_base = vmx_get_segment_base,
-	.get_segment = vmx_get_segment,
-	.set_segment = vmx_set_segment,
-	.get_cpl = vmx_get_cpl,
-	.get_cs_db_l_bits = vmx_get_cs_db_l_bits,
-	.set_cr0 = vmx_set_cr0,
-	.set_cr4 = vmx_set_cr4,
-	.set_efer = vmx_set_efer,
-	.get_idt = vmx_get_idt,
-	.set_idt = vmx_set_idt,
-	.get_gdt = vmx_get_gdt,
-	.set_gdt = vmx_set_gdt,
-	.set_dr7 = vmx_set_dr7,
-	.sync_dirty_debug_regs = vmx_sync_dirty_debug_regs,
-	.cache_reg = vmx_cache_reg,
-	.get_rflags = vmx_get_rflags,
-	.set_rflags = vmx_set_rflags,
-
-	.tlb_flush_all = vmx_flush_tlb_all,
-	.tlb_flush_current = vmx_flush_tlb_current,
-	.tlb_flush_gva = vmx_flush_tlb_gva,
-	.tlb_flush_guest = vmx_flush_tlb_guest,
-
-	.vcpu_run = vmx_vcpu_run,
-	.handle_exit = vmx_handle_exit,
-	.skip_emulated_instruction = vmx_skip_emulated_instruction,
-	.update_emulated_instruction = vmx_update_emulated_instruction,
-	.set_interrupt_shadow = vmx_set_interrupt_shadow,
-	.get_interrupt_shadow = vmx_get_interrupt_shadow,
-	.patch_hypercall = vmx_patch_hypercall,
-	.inject_irq = vmx_inject_irq,
-	.inject_nmi = vmx_inject_nmi,
-	.queue_exception = vmx_queue_exception,
-	.cancel_injection = vmx_cancel_injection,
-	.interrupt_allowed = vmx_interrupt_allowed,
-	.nmi_allowed = vmx_nmi_allowed,
-	.get_nmi_mask = vmx_get_nmi_mask,
-	.set_nmi_mask = vmx_set_nmi_mask,
-	.enable_nmi_window = enable_nmi_window,
-	.enable_irq_window = enable_irq_window,
-	.update_cr8_intercept = update_cr8_intercept,
-	.set_virtual_apic_mode = vmx_set_virtual_apic_mode,
-	.set_apic_access_page_addr = vmx_set_apic_access_page_addr,
-	.refresh_apicv_exec_ctrl = vmx_refresh_apicv_exec_ctrl,
-	.load_eoi_exitmap = vmx_load_eoi_exitmap,
-	.apicv_post_state_restore = vmx_apicv_post_state_restore,
-	.check_apicv_inhibit_reasons = vmx_check_apicv_inhibit_reasons,
-	.hwapic_irr_update = vmx_hwapic_irr_update,
-	.hwapic_isr_update = vmx_hwapic_isr_update,
-	.guest_apic_has_interrupt = vmx_guest_apic_has_interrupt,
-	.sync_pir_to_irr = vmx_sync_pir_to_irr,
-	.deliver_posted_interrupt = vmx_deliver_posted_interrupt,
-	.dy_apicv_has_pending_interrupt = vmx_dy_apicv_has_pending_interrupt,
-
-	.set_tss_addr = vmx_set_tss_addr,
-	.set_identity_map_addr = vmx_set_identity_map_addr,
-	.get_tdp_level = vmx_get_tdp_level,
-	.get_mt_mask = vmx_get_mt_mask,
-
-	.get_exit_info = vmx_get_exit_info,
-
-	.cpuid_update = vmx_cpuid_update,
+	KVM_X86_OP(get_msr_feature),
+	KVM_X86_OP(get_msr),
+	KVM_X86_OP(set_msr),
+	KVM_X86_OP(get_segment_base),
+	KVM_X86_OP(get_segment),
+	KVM_X86_OP(set_segment),
+	KVM_X86_OP(get_cpl),
+	KVM_X86_OP(get_cs_db_l_bits),
+	KVM_X86_OP(set_cr0),
+	KVM_X86_OP(set_cr4),
+	KVM_X86_OP(set_efer),
+	KVM_X86_OP(get_idt),
+	KVM_X86_OP(set_idt),
+	KVM_X86_OP(get_gdt),
+	KVM_X86_OP(set_gdt),
+	KVM_X86_OP(set_dr7),
+	KVM_X86_OP(sync_dirty_debug_regs),
+	KVM_X86_OP(cache_reg),
+	KVM_X86_OP(get_rflags),
+	KVM_X86_OP(set_rflags),
+
+	KVM_X86_OP(tlb_flush_all),
+	KVM_X86_OP(tlb_flush_current),
+	KVM_X86_OP(tlb_flush_gva),
+	KVM_X86_OP(tlb_flush_guest),
+
+	KVM_X86_OP(vcpu_run),
+	KVM_X86_OP(handle_exit),
+	KVM_X86_OP(skip_emulated_instruction),
+	KVM_X86_OP(update_emulated_instruction),
+	KVM_X86_OP(set_interrupt_shadow),
+	KVM_X86_OP(get_interrupt_shadow),
+	KVM_X86_OP(patch_hypercall),
+	KVM_X86_OP(inject_irq),
+	KVM_X86_OP(inject_nmi),
+	KVM_X86_OP(queue_exception),
+	KVM_X86_OP(cancel_injection),
+	KVM_X86_OP(interrupt_allowed),
+	KVM_X86_OP(nmi_allowed),
+	KVM_X86_OP(get_nmi_mask),
+	KVM_X86_OP(set_nmi_mask),
+	KVM_X86_OP(enable_nmi_window),
+	KVM_X86_OP(enable_irq_window),
+	KVM_X86_OP(update_cr8_intercept),
+	KVM_X86_OP(set_virtual_apic_mode),
+	KVM_X86_OP(set_apic_access_page_addr),
+	KVM_X86_OP(refresh_apicv_exec_ctrl),
+	KVM_X86_OP(load_eoi_exitmap),
+	KVM_X86_OP(apicv_post_state_restore),
+	KVM_X86_OP(check_apicv_inhibit_reasons),
+	KVM_X86_OP(hwapic_irr_update),
+	KVM_X86_OP(hwapic_isr_update),
+	KVM_X86_OP(guest_apic_has_interrupt),
+	KVM_X86_OP(sync_pir_to_irr),
+	KVM_X86_OP(deliver_posted_interrupt),
+	KVM_X86_OP(dy_apicv_has_pending_interrupt),
+
+	KVM_X86_OP(set_tss_addr),
+	KVM_X86_OP(set_identity_map_addr),
+	KVM_X86_OP(get_tdp_level),
+	KVM_X86_OP(get_mt_mask),
+
+	KVM_X86_OP(get_exit_info),
+
+	KVM_X86_OP(cpuid_update),
 
 	.has_wbinvd_exit = cpu_has_vmx_wbinvd_exit,
 
-	.write_l1_tsc_offset = vmx_write_l1_tsc_offset,
+	KVM_X86_OP(write_l1_tsc_offset),
 
-	.load_mmu_pgd = vmx_load_mmu_pgd,
+	KVM_X86_OP(load_mmu_pgd),
 
-	.check_intercept = vmx_check_intercept,
-	.handle_exit_irqoff = vmx_handle_exit_irqoff,
+	KVM_X86_OP(check_intercept),
+	KVM_X86_OP(handle_exit_irqoff),
 
-	.request_immediate_exit = vmx_request_immediate_exit,
+	KVM_X86_OP(request_immediate_exit),
 
-	.sched_in = vmx_sched_in,
+	KVM_X86_OP(sched_in),
 
-	.slot_enable_log_dirty = vmx_slot_enable_log_dirty,
-	.slot_disable_log_dirty = vmx_slot_disable_log_dirty,
-	.flush_log_dirty = vmx_flush_log_dirty,
-	.enable_log_dirty_pt_masked = vmx_enable_log_dirty_pt_masked,
+	KVM_X86_OP(slot_enable_log_dirty),
+	KVM_X86_OP(slot_disable_log_dirty),
+	KVM_X86_OP(flush_log_dirty),
+	KVM_X86_OP(enable_log_dirty_pt_masked),
 	.write_log_dirty = vmx_write_pml_buffer,
 
-	.pre_block = vmx_pre_block,
-	.post_block = vmx_post_block,
+	KVM_X86_OP(pre_block),
+	KVM_X86_OP(post_block),
 
 	.pmu_ops = &intel_pmu_ops,
 	.nested_ops = &vmx_nested_ops,
 
-	.update_pi_irte = vmx_update_pi_irte,
+	KVM_X86_OP(update_pi_irte),
 
 #ifdef CONFIG_X86_64
-	.set_hv_timer = vmx_set_hv_timer,
-	.cancel_hv_timer = vmx_cancel_hv_timer,
+	KVM_X86_OP(set_hv_timer),
+	KVM_X86_OP(cancel_hv_timer),
 #endif
 
-	.setup_mce = vmx_setup_mce,
+	KVM_X86_OP(setup_mce),
 
-	.smi_allowed = vmx_smi_allowed,
-	.pre_enter_smm = vmx_pre_enter_smm,
-	.pre_leave_smm = vmx_pre_leave_smm,
-	.enable_smi_window = enable_smi_window,
+	KVM_X86_OP(smi_allowed),
+	KVM_X86_OP(pre_enter_smm),
+	KVM_X86_OP(pre_leave_smm),
+	KVM_X86_OP(enable_smi_window),
 
-	.need_emulation_on_page_fault = vmx_need_emulation_on_page_fault,
-	.apic_init_signal_blocked = vmx_apic_init_signal_blocked,
-	.migrate_timers = vmx_migrate_timers,
+	KVM_X86_OP(need_emulation_on_page_fault),
+	KVM_X86_OP(apic_init_signal_blocked),
+	KVM_X86_OP(migrate_timers),
 };
 
 static __init int hardware_setup(void)
diff --git a/arch/x86/kvm/vmx/vmx.h b/arch/x86/kvm/vmx/vmx.h
index 639798e..8084ce0 100644
--- a/arch/x86/kvm/vmx/vmx.h
+++ b/arch/x86/kvm/vmx/vmx.h
@@ -325,7 +325,7 @@ void vmx_vcpu_load_vmcs(struct kvm_vcpu *vcpu, int cpu,
 int allocate_vpid(void);
 void free_vpid(int vpid);
 void vmx_set_constant_host_state(struct vcpu_vmx *vmx);
-void vmx_prepare_switch_to_guest(struct kvm_vcpu *vcpu);
+void vmx_prepare_guest_switch(struct kvm_vcpu *vcpu);
 void vmx_set_host_fs_gs(struct vmcs_host_state *host, u16 fs_sel, u16 gs_sel,
 			unsigned long fs_base, unsigned long gs_base);
 int vmx_get_cpl(struct kvm_vcpu *vcpu);
-- 
1.8.3.1

[PATCH 5/6 v3] KVM: nVMX: Fill in conforming vmx_nested_ops via macro

[Krish Sadhukhan]

The names of some of the vmx_nested_ops functions do not have a corresponding
'nested_vmx_' prefix. Generate the names using a macro so that the names are
conformant. Fixing the naming will help in better readability and
maintenance of the code.

Suggested-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Krish Sadhukhan <krish.sadhukhan@oracle.com>
---
 arch/x86/kvm/vmx/nested.c | 24 +++++++++++++-----------
 arch/x86/kvm/vmx/nested.h |  2 +-
 arch/x86/kvm/vmx/vmx.c    |  4 ++--
 3 files changed, 16 insertions(+), 14 deletions(-)

diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c
index a898b53..fc09bb0 100644
--- a/arch/x86/kvm/vmx/nested.c
+++ b/arch/x86/kvm/vmx/nested.c
@@ -3105,7 +3105,7 @@ static int nested_vmx_check_vmentry_hw(struct kvm_vcpu *vcpu)
 	return 0;
 }
 
-static bool nested_get_vmcs12_pages(struct kvm_vcpu *vcpu)
+static bool nested_vmx_get_vmcs12_pages(struct kvm_vcpu *vcpu)
 {
 	struct vmcs12 *vmcs12 = get_vmcs12(vcpu);
 	struct vcpu_vmx *vmx = to_vmx(vcpu);
@@ -3295,7 +3295,7 @@ enum nvmx_vmentry_status nested_vmx_enter_non_root_mode(struct kvm_vcpu *vcpu,
 	prepare_vmcs02_early(vmx, vmcs12);
 
 	if (from_vmentry) {
-		if (unlikely(!nested_get_vmcs12_pages(vcpu)))
+		if (unlikely(!nested_vmx_get_vmcs12_pages(vcpu)))
 			return NVMX_VMENTRY_KVM_INTERNAL_ERROR;
 
 		if (nested_vmx_check_vmentry_hw(vcpu)) {
@@ -3711,7 +3711,7 @@ static bool nested_vmx_preemption_timer_pending(struct kvm_vcpu *vcpu)
 	       to_vmx(vcpu)->nested.preemption_timer_expired;
 }
 
-static int vmx_check_nested_events(struct kvm_vcpu *vcpu)
+static int nested_vmx_check_events(struct kvm_vcpu *vcpu)
 {
 	struct vcpu_vmx *vmx = to_vmx(vcpu);
 	unsigned long exit_qual;
@@ -5907,7 +5907,7 @@ bool nested_vmx_reflect_vmexit(struct kvm_vcpu *vcpu)
 	return true;
 }
 
-static int vmx_get_nested_state(struct kvm_vcpu *vcpu,
+static int nested_vmx_get_state(struct kvm_vcpu *vcpu,
 				struct kvm_nested_state __user *user_kvm_nested_state,
 				u32 user_data_size)
 {
@@ -6031,7 +6031,7 @@ void vmx_leave_nested(struct kvm_vcpu *vcpu)
 	free_nested(vcpu);
 }
 
-static int vmx_set_nested_state(struct kvm_vcpu *vcpu,
+static int nested_vmx_set_state(struct kvm_vcpu *vcpu,
 				struct kvm_nested_state __user *user_kvm_nested_state,
 				struct kvm_nested_state *kvm_state)
 {
@@ -6448,7 +6448,7 @@ void nested_vmx_setup_ctls_msrs(struct nested_vmx_msrs *msrs, u32 ept_caps)
 	msrs->vmcs_enum = VMCS12_MAX_FIELD_INDEX << 1;
 }
 
-void nested_vmx_hardware_unsetup(void)
+void nested_vmx_hardware_teardown(void)
 {
 	int i;
 
@@ -6473,7 +6473,7 @@ __init int nested_vmx_hardware_setup(int (*exit_handlers[])(struct kvm_vcpu *))
 			vmx_bitmap[i] = (unsigned long *)
 				__get_free_page(GFP_KERNEL);
 			if (!vmx_bitmap[i]) {
-				nested_vmx_hardware_unsetup();
+				nested_vmx_hardware_teardown();
 				return -ENOMEM;
 			}
 		}
@@ -6497,12 +6497,14 @@ __init int nested_vmx_hardware_setup(int (*exit_handlers[])(struct kvm_vcpu *))
 	return 0;
 }
 
+#define KVM_X86_NESTED_OP(name) .name = nested_vmx_##name
+
 struct kvm_x86_nested_ops vmx_nested_ops = {
-	.check_events = vmx_check_nested_events,
+	KVM_X86_NESTED_OP(check_events),
 	.hv_timer_pending = nested_vmx_preemption_timer_pending,
-	.get_state = vmx_get_nested_state,
-	.set_state = vmx_set_nested_state,
-	.get_vmcs12_pages = nested_get_vmcs12_pages,
+	KVM_X86_NESTED_OP(get_state),
+	KVM_X86_NESTED_OP(set_state),
+	KVM_X86_NESTED_OP(get_vmcs12_pages),
 	.enable_evmcs = nested_enable_evmcs,
 	.get_evmcs_version = nested_get_evmcs_version,
 };
diff --git a/arch/x86/kvm/vmx/nested.h b/arch/x86/kvm/vmx/nested.h
index 758bccc..ac6b561 100644
--- a/arch/x86/kvm/vmx/nested.h
+++ b/arch/x86/kvm/vmx/nested.h
@@ -18,7 +18,7 @@ enum nvmx_vmentry_status {
 
 void vmx_leave_nested(struct kvm_vcpu *vcpu);
 void nested_vmx_setup_ctls_msrs(struct nested_vmx_msrs *msrs, u32 ept_caps);
-void nested_vmx_hardware_unsetup(void);
+void nested_vmx_hardware_teardown(void);
 __init int nested_vmx_hardware_setup(int (*exit_handlers[])(struct kvm_vcpu *));
 void nested_vmx_set_vmcs_shadowing_bitmap(void);
 void nested_vmx_free_vcpu(struct kvm_vcpu *vcpu);
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index f6a6674..6512e6e 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -7830,7 +7830,7 @@ static void vmx_migrate_timers(struct kvm_vcpu *vcpu)
 static void vmx_hardware_teardown(void)
 {
 	if (nested)
-		nested_vmx_hardware_unsetup();
+		nested_vmx_hardware_teardown();
 
 	free_kvm_area();
 }
@@ -8144,7 +8144,7 @@ static __init int hardware_setup(void)
 
 	r = alloc_kvm_area();
 	if (r)
-		nested_vmx_hardware_unsetup();
+		nested_vmx_hardware_teardown();
 	return r;
 }
 
-- 
1.8.3.1

[PATCH 6/6 v3] QEMU: x86: Change KVM_MEMORY_ENCRYPT_* #defines to make them conformant to the kernel

[Krish Sadhukhan]

Suggested-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Krish Sadhukhan <krish.sadhukhan@oracle.com>
---
 target/i386/sev.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/target/i386/sev.c b/target/i386/sev.c
index c3ecf86..0913782 100644
--- a/target/i386/sev.c
+++ b/target/i386/sev.c
@@ -113,7 +113,7 @@ sev_ioctl(int fd, int cmd, void *data, int *error)
     input.sev_fd = fd;
     input.data = (__u64)(unsigned long)data;
 
-    r = kvm_vm_ioctl(kvm_state, KVM_MEMORY_ENCRYPT_OP, &input);
+    r = kvm_vm_ioctl(kvm_state, KVM_MEM_ENC_OP, &input);
 
     if (error) {
         *error = input.error;
@@ -187,7 +187,7 @@ sev_ram_block_added(RAMBlockNotifier *n, void *host, size_t size)
     range.size = size;
 
     trace_kvm_memcrypt_register_region(host, size);
-    r = kvm_vm_ioctl(kvm_state, KVM_MEMORY_ENCRYPT_REG_REGION, &range);
+    r = kvm_vm_ioctl(kvm_state, KVM_MEM_ENC_REGISTER_REGION, &range);
     if (r) {
         error_report("%s: failed to register region (%p+%#zx) error '%s'",
                      __func__, host, size, strerror(errno));
@@ -216,7 +216,7 @@ sev_ram_block_removed(RAMBlockNotifier *n, void *host, size_t size)
     range.size = size;
 
     trace_kvm_memcrypt_unregister_region(host, size);
-    r = kvm_vm_ioctl(kvm_state, KVM_MEMORY_ENCRYPT_UNREG_REGION, &range);
+    r = kvm_vm_ioctl(kvm_state, KVM_MEM_ENC_UNREGISTER_REGION, &range);
     if (r) {
         error_report("%s: failed to unregister region (%p+%#zx)",
                      __func__, host, size);
@@ -454,7 +454,7 @@ sev_get_capabilities(Error **errp)
         error_setg(errp, "KVM not enabled");
         return NULL;
     }
-    if (kvm_vm_ioctl(kvm_state, KVM_MEMORY_ENCRYPT_OP, NULL) < 0) {
+    if (kvm_vm_ioctl(kvm_state, KVM_MEM_ENC_OP, NULL) < 0) {
         error_setg(errp, "SEV is not enabled in KVM");
         return NULL;
     }
-- 
1.8.3.1

Re: [PATCH 1/6 v3] KVM: x86: Change names of some of the kvm_x86_ops functions to make them more semantical and readable

[Sean Christopherson]

This needs a changelog.

I would also split the non-x86 parts, i.e. the kvm_arch_* renames, to a
separate patch.

On Tue, Jul 28, 2020 at 12:10:45AM +0000, Krish Sadhukhan wrote:
> Suggested-by: Vitaly Kuznetsov <vkuznets@redhat.com>
> Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
> Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
> Signed-off-by: Krish Sadhukhan <krish.sadhukhan@oracle.com>
> ---
> @@ -4016,15 +4016,15 @@ static int svm_vm_init(struct kvm *kvm)
>  	.tlb_flush_gva = svm_flush_tlb_gva,
>  	.tlb_flush_guest = svm_flush_tlb,
>  
> -	.run = svm_vcpu_run,
> +	.vcpu_run = svm_vcpu_run,
>  	.handle_exit = handle_exit,
>  	.skip_emulated_instruction = skip_emulated_instruction,
>  	.update_emulated_instruction = NULL,
>  	.set_interrupt_shadow = svm_set_interrupt_shadow,
>  	.get_interrupt_shadow = svm_get_interrupt_shadow,
>  	.patch_hypercall = svm_patch_hypercall,
> -	.set_irq = svm_set_irq,
> -	.set_nmi = svm_inject_nmi,
> +	.inject_irq = svm_set_irq,

I would strongly prefer these renames to be fully recursive within a single
patch, i.e. rename svm_set_irq() as well.

Ditto for the unsetup->teardown change.

> +	.inject_nmi = svm_inject_nmi,
>  	.queue_exception = svm_queue_exception,
>  	.cancel_injection = svm_cancel_injection,
>  	.interrupt_allowed = svm_interrupt_allowed,
> @@ -4080,8 +4080,8 @@ static int svm_vm_init(struct kvm *kvm)
>  	.enable_smi_window = enable_smi_window,
>  
>  	.mem_enc_op = svm_mem_enc_op,
> -	.mem_enc_reg_region = svm_register_enc_region,
> -	.mem_enc_unreg_region = svm_unregister_enc_region,
> +	.mem_enc_register_region = svm_register_enc_region,
> +	.mem_enc_unregister_region = svm_unregister_enc_region,
>  
>  	.need_emulation_on_page_fault = svm_need_emulation_on_page_fault,
>  

...

> diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h
> index 4fdf303..cb6f153 100644
> --- a/include/uapi/linux/kvm.h
> +++ b/include/uapi/linux/kvm.h
> @@ -1469,15 +1469,15 @@ struct kvm_s390_ucas_mapping {
>  #define KVM_S390_GET_CMMA_BITS      _IOWR(KVMIO, 0xb8, struct kvm_s390_cmma_log)
>  #define KVM_S390_SET_CMMA_BITS      _IOW(KVMIO, 0xb9, struct kvm_s390_cmma_log)
>  /* Memory Encryption Commands */
> -#define KVM_MEMORY_ENCRYPT_OP      _IOWR(KVMIO, 0xba, unsigned long)
> +#define KVM_MEM_ENC_OP	            _IOWR(KVMIO, 0xba, unsigned long)

Renaming macros in uapi headers will break userspace.

We could do

  #define KVM_MEMORY_ENCRYPT_OP	KVM_MEM_ENC_OP

internally, but personally I think it would do more harm than good.

>  struct kvm_enc_region {
>  	__u64 addr;
>  	__u64 size;
>  };
>  
> -#define KVM_MEMORY_ENCRYPT_REG_REGION    _IOR(KVMIO, 0xbb, struct kvm_enc_region)
> -#define KVM_MEMORY_ENCRYPT_UNREG_REGION  _IOR(KVMIO, 0xbc, struct kvm_enc_region)
> +#define KVM_MEM_ENC_REGISTER_REGION    _IOR(KVMIO, 0xbb, struct kvm_enc_region)
> +#define KVM_MEM_ENC_UNREGISTER_REGION  _IOR(KVMIO, 0xbc, struct kvm_enc_region)
>  
>  /* Available with KVM_CAP_HYPERV_EVENTFD */
>  #define KVM_HYPERV_EVENTFD        _IOW(KVMIO,  0xbd, struct kvm_hyperv_eventfd)

Re: [PATCH 2/6 v3] KVM: SVM: Fill in conforming svm_x86_ops via macro

[Sean Christopherson]

On Tue, Jul 28, 2020 at 12:10:46AM +0000, Krish Sadhukhan wrote:
> The names of some of the svm_x86_ops functions do not have a corresponding
> 'svm_' prefix. Generate the names using a macro so that the names are
> conformant. Fixing the naming will help in better readability and
> maintenance of the code.

I'd probably prefer to split this into two patches, one to rename all the
functions and then the second to introduce the autofill macros.  Ditto for
VMX.

> Suggested-by: Vitaly Kuznetsov <vkuznets@redhat.com>
> Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
> Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>

All of the patches with my SOB need

  Co-developed-by: Sean Christopherson <sean.j.christopherson@intel.com>

> Signed-off-by: Krish Sadhukhan <krish.sadhukhan@oracle.com>
> ---

Re: [PATCH 4/6 v3] KVM: VMX: Fill in conforming vmx_x86_ops via macro

[Sean Christopherson]

On Tue, Jul 28, 2020 at 12:10:48AM +0000, Krish Sadhukhan wrote:
> The names of some of the vmx_x86_ops functions do not have a corresponding
> 'vmx_' prefix. Generate the names using a macro so that the names are
> conformant. Fixing the naming will help in better readability and
> maintenance of the code.
> 
> Suggested-by: Vitaly Kuznetsov <vkuznets@redhat.com>
> Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
> Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
> Signed-off-by: Krish Sadhukhan <krish.sadhukhan@oracle.com>
> ---
>  arch/x86/kvm/vmx/nested.c |   2 +-
>  arch/x86/kvm/vmx/vmx.c    | 234 +++++++++++++++++++++++-----------------------
>  arch/x86/kvm/vmx/vmx.h    |   2 +-
>  3 files changed, 120 insertions(+), 118 deletions(-)
> 
> diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c
> index d1af20b..a898b53 100644
> --- a/arch/x86/kvm/vmx/nested.c
> +++ b/arch/x86/kvm/vmx/nested.c
> @@ -3016,7 +3016,7 @@ static int nested_vmx_check_vmentry_hw(struct kvm_vcpu *vcpu)
>  
>  	preempt_disable();
>  
> -	vmx_prepare_switch_to_guest(vcpu);
> +	vmx_prepare_guest_switch(vcpu);

I very strongly prefer the VMX version, i.e. rename kvm_x86_ops.prepare_guest_switch()
instead of renamed vmx_prepare_switch_to_guest().  prepare_guest_switch() can be
misinterpreted as switching to a different guest, and vmx_prepare_switch_to_guest()
explicitly pairs with vmx_prepare_switch_to_host().

>  
>  	/*
>  	 * Induce a consistency check VMExit by clearing bit 1 in GUEST_RFLAGS,